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Monthly Archives: June 2017

After a fresh installation of CentOS in a new machine, the OS can not automatically connect to the network by default. So, the user/admin should manually change few setting so that the new system can gain a new IP address and connect to the internet.

To start, type nmcli d to check if the NIC card is installed properly.

Now the nmtui will open up the network manager setting for the centOS.

Choose the Edit a connection option

Choose the network interface and activate

Now, Click edit to configure the network settings

Check on the automatically connect option and OK to exit from network manager

Restart the network services

Enter the password of the root to commit the changes

Use the command IP a to see the IP configuration detail of the interfaces.

CentOS which stands for Community Enterprise Operating System is a free open source Linux distribution that is similar or compatible with Red Hat Enterprise Linux (RHEL). The latest release as of June 2017 is Centos 7.3 released on April 2017. This post will provide a guide to show the installation step of CentOS tested on VirtualBox. The ISO of this linux distribition can be download from Centos official website which is this.

Ok, Lets start…….

First we insert the installation disk to the machine, in this case virtual optical drive. And boot the machine with the boot device.

The below screen appears. Click on the install CentOS Linux 7 to start the installation.

Select the language preference for the installation process

The fresh system will prompt to select the installation destination

Select the hard disk for the installation if you have more than one disk installed. Also select the partition preferances, in this case weh choose automatically configure partitioning which will automitcally partition all the required partitions such as /, home, swap, var and others.

You can secure the disk with the passphrase with encryption

Now, the installation destination is configured, so click begin installation to continue with the installation

For security reasons, it is necessary to create a new user other than the root user and also set a strong password for the root user.

Select the root password and enter a strong password

And then select the user creation to create a new user

A new user details are being entered its own new password

After few minutes, the installation will be complete and the system informs to reboot.

The installation will be completed and user needs to login to the system

The user is logged in and can start to configure application as per the need.

Ubuntu has released its latest version named Ubuntu 17.04 Zesty Xapus on April 2017. It now includes Linux kernel 4.10 and systemd-relsoved being the new default DNS resolver. This post presents the guide to install Ubuntu in a fresh system.

After booting the system with Ubuntu operating system which can be downloaded here, the first step is to choose the language.

Click on Install Ubuntu Server to start the installation

The installation process will use the language that is selected in the next step.

Choose the location where the server located

The system itself can detect the keyboard layout based on your location, but you can select no to congigure it manually.

Now, choose the origin for the keyboard layout from the list given

Select the keyboard layout

Installer will configure the components selected

Type in a name for the new ubuntu server

Type in full name of the user

Type a unique username for the user

Create a password for the user

Re-type the password again

This shows that a weak password is set. Since, this is just for testing purpose, I will neglect that by clicking NO

Few more component being configured

Installer automatically detects the time zone. Click YES if its right or NO to set other time zone manually.

For Disk partitioning you can manually partition based on your needs or can choose Guided – use entire disk and set up LVM

Select the disk for the partition to be performed

Click yes to set the changes for the partition

The base system is being installed in this phase

HTTP proxy information is being asked. Leave blank if none is used

The apt is being configured

Choose between the three options for server updates requirement

Select additional software to be installed with this installation

Selected software are being installed

Finalizing the installation

Select YES to install the boot loader to the master boot record. and when the installation is complete, click continue to reboot the system.

The GRUB boot loader can be seen with Ubuntu (Operating System) and Advanced option for Ubuntu (used for repair and troubleshooting OS).

The reboot is in process

After the reboot, login to the operating system

After login, a default message appears giving information about the OS.

Lastly, Ubuntu Server 17.04 is successfully installed in a new machine. Hope this will be be helpful to you all

Open Live Writer is a good replacement of Windows Live writer that supports a wide range of blogs such as WordPress and Blogger to name a few. This post will show you to the way to download and install open live writer to your computer. The open source software can be download from here. I use this application to create, and publish my WordPress blogs. And now lets get started!!

Initially, download the software which is just around 5MB in size. Click on the set file to start your installation.

Choose your preferred blogging service. I am choosing WordPress, since I have a blog on WordPress

Add the credentials of your blogging website to allow access

Now, the package will be configured on your PC

The setup is almost done. Name a nickname for your blog

Start writing your blog and post with one click on Publish button that’s on top left menu